Current River Level: 2.185m, falling

Downstream levels are measured from the same datum level as the upstream measurement, not from the river bed.
They can, therefore, be negative, and do not give any indication of water depth.

The normal level of the Thames at Mapledurham Lock (Downstream) in average weather conditions is between
2.09m
and 2.32m. It has been between these levels
for at least 151 days in the past year.

The usual range of the Thames at Mapledurham Lock (Downstream) in more extreme weather conditions is between
2.10m
and 3.00m. It has been between these levels for 90% of
the time since monitoring began.

Note: CSV data will include any outlying values that have been ignored by our graphing system as probably erroneous (eg, because they
are ridiculously high compared to the values either side of them). It is your responsibility
to filter these out if necessary.

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